Home / 215,638,951.78-323,343,343.63-111,903,707.96

Finding the Fourth Proportional to 215,638,951.78, 323,343,343.63 and 111,903,707.96

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Solution

The fourth proportional to 215,638,951.78, 323,343,343.63 and 111,903,707.96 is: 167,795,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,638,951.78 : 323,343,343.63 = 111,903,707.96 : x
  2. Step 2: Convert to fraction form
    215,638,951.78/323,343,343.63 = 111,903,707.96/x
  3. Step 3: Cross multiply
    215,638,951.78x = 323,343,343.63 × 111,903,707.96
  4. Step 4: Simplify right side
    215,638,951.78x = 36,183,319,096,117,144
  5. Step 5: Solve for x
    x = 36,183,319,096,117,144/215,638,951.78
  6. Step 6: Final answer
    x = 167,795,840.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.